Giải giúp mik 2 câu này vs Question Giải giúp mik 2 câu này vs in progress 0 Môn Toán Khánh Gia 4 years 2020-10-15T11:08:27+00:00 2020-10-15T11:08:27+00:00 1 Answers 99 views 0
Answers ( )
Đáp án:
$\begin{array}{l}
f)\left( {{8^{14}}:{4^{17}}} \right):\left( {{{16}^6}:{8^2}} \right)\\
= \left( {{2^{3.14}}:{2^{2.17}}} \right):\left( {{2^{4.6}}:{2^{3.2}}} \right)\\
= {2^{42 – 34}}:{2^{24 – 6}}\\
= {2^8}:{2^{18}}\\
= {2^{8 – 18}}\\
= {2^{ – 10}}\\
= \dfrac{1}{{{2^{10}}}}\\
d){2^3} + 3.{\left( {\dfrac{1}{3}} \right)^0} – {2^{ – 2}}.4 + \left[ {{{\left( { – 2} \right)}^2}:\dfrac{1}{2}} \right].8\\
= {2^3} + 3.1 – {2^{ – 2}}{.2^2} + {\left( { – 2} \right)^{2 – 1}}{.2^3}\\
= 8 + 3 – 1 – 2\\
= 8
\end{array}$